Toilet for boats



Aug. 19,1958 H. P. BURGRAFF TOILET FOR BOATS 2 Sheets-Sheet 1 Filed June 5, 1957 Henry Hr/l/ip Burgraff INVENTOR.

By WWW 15m Aug. 19, 1958 H. P. BURGRAFF TOILET FOR BOATS 2 Sheets-Sheet 2 Filed June 3, 1957 Fig. 2

Henry Ph/W/p Burgraff INVENTOR.

BY 19M"),

United States Patent ()fitice 2,847,679 Patented Aug. 19, 1.958

TOILET FORBOATS Henry Phillip Burgralf, Superior, Wis.

Application June 3, 1957, Serial No. 663,092

3 Claims. (Cl. 4-10) My invention relates to improvements in toilets for small boats such as launches, cabin cruisers, and the like.

The primary object of my invention is to provide a toilet bowl in such a boat and a flushing pipe extending below the bottom of the boat for scooping up water from below the bottom of the boat to be forced upwardly into the bowl in response to forward travel of the boat for flushing the bowl, together with a suction discharge conduit for the bowl extending through the bottom of the bowl and terminating in a suction nozzle in which suction is created in response to forward travel of the boat and in a manner to evacuate the conduit of matter flushed from the bowl into the conduit, the flushing pipe extending through the discharge conduit into the bowl and terminating in a water scoop in said nozzle opening out of the same, all to obviate flushing connections for the bowl outside the same and the conduit and thereby simplify the construction and reducing the number of parts extending through the bottom of the boat and water seals for such parts.

Another object is to provide a toilet for boats, as in the foregoing, which is enclosed, easy to install in any small boat, and is sanitary and comparatively inexpensive to manufacture and will not become clogged.

These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a view in perspective of my inproved toilet shown partly in dotted lines;

Figure 2 is an enlarged fragmentary view in vertical section taken on the line 2-2 of Figure 1;

Figure 3 is a view in horizontal section taken on the line 33 of Figure 2;

Figure 4 is a fragmentary view in vertical section taken on the line 4-4 of Figure 2; and

Figure 5 is an enlarged view in perspective of a nozzle forming part of the discharge conduit. Referring to the drawings by numerals, the toilet of my invention, designated generally by the numeral 1 comprises a toilet bowl 3, preferably of cast iron, having a tubular bottom discharge throat 5 depending therefrom, and a lateral rim flange 7. The bowl 3 is supported at a suitable height in an enclosing cabinet 9 rising from and suitably secured on the bottom 11 of a boat, shown fragmentarily at 13, said cabinet 9 including an upright internal frame 15 on which the bowl 3 is suported by its rim flange 7 in elevated position.

A conventional toilet seat 17 is suitably fixed on top of the cabinet 9 to overlap the rim flange 7 and secure said flange 7 on said frame 15, and a suitable lid 18 for the bowl 3 is hinged, as at 19, to said seat 17 for vertical swinging to open and close the bowl 3.

A vertical discharge conduit 21 in the cabinet 9 for the contents of the bowl 3 depends from the throat 5 vertical portion 27 extends through and above the opening 23 and is tightly fitted therein.

The nozzle 25 is clamped to the bottom 11 of the boat 13 by means of a circumferential flange 30 on said portion 27 at one side of said bottom, a fiat brass collar 31 tightly-fitting around said portion 27' at the opposite side of said bottom 11, water sealing gaskets 33, 35 interposed between the flange 30 and bottom 11 and between the collar 31 and said bottom 11, and bolts 37 extending through said flange 30, collar 31 and said bottom and said gaskets. As will be seen, the flange 29, collar 31 and gaskets 33, 35 together with the tight fit of the portion 27 in the opening 23 form a watertight seal around said nozzle 25 and said opening 23.

The throat 5 and the nozzle 25 are connected by a hose section 39 having its upper and lower ends sleeved over said throat 5 and the vertical portion 27 of the nozzle 25 and said ends clamped to said throat 5 and portion 27 by upper and lower conventional, split clamping rings 41, 43 having tightening bolts, as at 45, in the ends thereof.

An upright flushing pipe 47 extends upwardly through the conduit 21 alongside what constitutes the front side of said conduit and curves upwardly up out of the conduit against one side of the bowl 3 in conformity with the curvature of the bowl, with an upper lateral curved discharge end 49 in the upper portion of said bowl 3. The pipe 47 extends upwardly out of the nozzle 25 from the lower end 29 of said nozzle and has a lower flared scoop forming end 49 opening through the end 29 of the nozzle forwardly thereof, in other words in the direction of forward travel of the boat 13 and said nozzle.

The described toilet operates as follows. In response to travel of the boat 13 and nozzle 25 forwardly water will be scooped into the lower end 49 of the pipe 47 to be forced upwardly therethrough into the bowl 3 to flush matter out of the bowl into the conduit 21. Also, in response to forward travel of the boat 13 and nozzle 25 a partial vacuum will be created at the opening in the lower end 29 of the nozzle suflicient to cause water and matter in the conduit 21 to be drawn downwardly and flow out of the lower end 29 of the nozzle 25 rearwardly thereof whereby the conduit 21 will be evacuated of matter flushed therein from the bowl 3.

The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilied in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted.to, falling within the scope of the invention as claimed.

What is claimed as new is as follows:

1. A toilet for a boat comprising a bowl having a bottom discharge throat, means for supporting the bowl on the bottom of a boat, a discharge conduit for said bowl attached to said throat to depend therefrom and through a hole in the bottom of a boat and terminating at its lower end in a suction discharge nozzle adapted to extend below the mottor of a boat and to open toward the rear of the boat whereby suction will be created in said condiut in response to forward travel of the boat and nozzle in water to draw matter and. water out of 7 3 4 the conduit, and a pipe extending upwardly through 3. The combination of claim 1, said pipe curving along said conduit and throat into said bowl and having a one side of the bowl in conformity therewith and terlower end attached to said nozzle and opening out of the minating in said bowl in a lateral discharge end. same in the direction of forward travel of the nozzle whereby in response to forward travel of the boat and 5 References Cited in the file of this patent nozzle Water will be forced up said pipe into said bowl to flush matter therein into the conduit. UNITED STATES PATENTS 2. A toilet according to claim 1, said lower end of said 968,385 Morgan Aug. 23, 1910 pipe flaring and providing a water scoop within said 2,130,954 Hoerichs Sept. 20, 1938 nozzle. 10 2,779,948 Houle Feb. 5, 1957 

